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Human FSTL1 Protein (His Tag)

FRP,FSL1,MIR198

Catalog Number P80885-H08H
Organism Species Human
Host Human Cells
Synonyms FRP,FSL1,MIR198
Molecular Weight The recombinant human Fstl1 consists 299 amino acids and predicts a molecular mass of 34 kDa.
predicted N Glu 19
SDS-PAGE
Purity > 90 % as determined by SDS-PAGE.
Protein Construction A DNA sequence encoding the human Fstl1 (NP_077345.1) (Met1-Ile306) was expressed with a polyhistidine tag at the C-terminus.
Bio-activity
Research Area Cancer |Cancer immunology |Cytokine & Receptor |Transforming Growth Factor Beta (TGF-beta) Superfamily |TGF-beta Superfamily Modulators
Formulation Lyophilized from sterile PBS, pH 7.4.
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
Background Follistatin-related protein 1 (FSTL1)  is an extracellular glycoprotein whose functional significance in physiological and pathological processes is incompletely understood. Recently, we have shown that FSTL1 acts as a muscle-derived secreted factor that is up-regulated by Akt activation and ischemic stress and that FSTL1 exerts favorable actions on the heart and vasculature. Here, we sought to identify the receptor that mediates the cellular actions of FSTL1. It contains an FS module, a follistatin-like sequence containing 10 conserved cysteine residues. FSTL1 is thought to be an autoantigen associated with rheumatoid arthritis. DIP2A functions as a novel receptor that mediates the cardiovascular protective effects of FSTL1. Experiment results have provided in vivo and in vitro evidence to demonstrate that Fstl1 modulates lung development and alveolar maturation, in part, through BMP4 signaling.
Reference
  • Rosenberg MI, et al. (2006) MyoD inhibits Fstl1 and Utrn expression by inducing transcription of miR-206. J Cell Biol. 175(1): 77-85.
  • Ouchi N, et al. (2010) DIP2A functions as a FSTL1 receptor. J Biol Chem. 285(10): 7127-34.
  • Geng Y, et al. (2011) Follistatin-like 1 (Fstl1) is a bone morphogenetic protein (BMP) 4 signaling antagonist in controlling mouse lung development. Proc Natl Acad Sci U S A. 108(17): 7058-63.